International Freezer Challenge
The International Freezer Challenge is a friendly competition co-hosted by I2SL and My Green Lab to promote best practices in cold storage management. Participants earn points based on the amount of energy they save and the cold storage management practices they implement.
In 2026, the Freezer Challenge continued to grow with over 4,000 labs participating representing 268 organizations across 42 countries. Participants performed over 129,000 direct actions to save over 29.7 million kilowatt hours (kWh) of electricity. These energy savings helped reduce greenhouse gas emissions by 19,943 metric tons of carbon dioxide equivalent, which is equal to 4,652 gasoline-powered passenger vehicles removed from the road for a year!
2026 International Freezer Challenge Winners
Biotech/Pharmaceutical Sector Winners
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Top Organization Award: Amgen
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Winning Streak Award: AstraZeneca
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Large Lab Award​: RTP, IQVIA Laboratories
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Medium Lab Award: Madison Sample Management, Labcorp
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Medium Lab Winning Streak Award: Shanghai/Specimen Management, Labcorp
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Small Lab Award: CAM – Research – BDD Lab – 6A-4, Biogen
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Small Lab Winning Streak Award: Regional HBS Centre Gothenburg Lab, AstraZeneca
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Biorepository Award: Biorepository US, Labcorp
Academic Sector Winners
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Top Organization Award: The Institute of Cancer Research (United Kingdom)
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Large Lab Award​: Retrovirus Lab, John Hopkins University
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Medium Lab Award: Social, Genetic and Development Psychiatry (SGDP), King’s College London
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Small Lab Award: Rule’s Lab, John Hopkins University
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Small Lab Winning Streak Award: Subramaniam Lab, University of Alabama
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Biorepository Award: Biobanc HUB-ICO-IDIBELL, Institut d’Investigació Biomèdica de Bellvitge (IDIBELL) (Spain)
Hospital/Clinical/Other Winners
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Top Organization Award: Siemens Healthineers
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Winning Streak Award: Boston Children’s Hospital
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Large Lab Award​: Blackrock Health, Galway Clinic (Ireland)
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Medium Lab Award: CSP Lab, University Health Network (Canada)
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Small Lab Award: Puder Lab, Boston Children’s Hospital
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Small Lab Winning Streak Award: CRB/CIC1403 Lab, CHU de Lille (France)
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Biorepository Award: Biopathology Center, Nationwide Children’s Abigail Wexner Research Institute
Government Sector Winners
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Top Organization Award:​ Smithsonian Tropical Research Institute (Panama)
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Winning Streak Award: Cefas (United Kingdom)
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Large Lab Award​: Medicines Discovery Catapult (United Kingdom)
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Medium Lab Award: EURL, IVD 1, Paul-Ehrlich-Institut (Germany)
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Small Lab Award: MFF Weymouth, Cefas (United Kingdom)
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Biorepository Award: Biobank, Medical Research Council Unit The Gambia at the London School of Hygiene & Tropical Medicine (Gambia)
Honorable Mention, Organizations
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Abbvie
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University of Georgia
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Imperial College London
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King’s College London
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Memorial Sloan Kettering Cancer Center
Honorable Mention, Laboratories
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SWT R&D, Sanofi
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Geneva Site, Labcorp (Switzerland)
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Specimen Management Indianapolis, Labcorp
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JH Biobank, Johns Hopkins University
